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Possible network parameters on IMT-2020/5G transport network
16th, October, 2017KDDI (Japan)
Noboru Yoshikane
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Agenda1. Introduction
ITU-R IMT vision Possible usage scenarios
2. Possible 5G network deployment scenario Network structures Deployment scenario
3. Possible 5G network parameters Network topology Bandwidth, Interface type, Latency, etc.
4.Summary
2
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ITU-R IMT Vision (IMT-2020)
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Reference : IMT Vision – “Framework and overall objectives of the future development of IMT for 2020 and beyond”, ITU-R Recommendation M.2083-0, September 2015.
latency1ms(Radio segment)
Peak data rate20Gbps
Connection density106/km2
Area trafficcapacity10Mbps/m2
User experienceddata rate 100Mbps
Enhancement of key capabilities from IMT-Advanced to IMT-2020
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ITU-R IMT Vision (IMT-2020) (Contʼd)
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Reference : IMT Vision – “Framework and overall objectives of the future development of IMT for 2020 and beyond”, ITU-R Recommendation M.2083-0, September 2015.
eMBB
URLLCmMTC
The importance of key capabilities in different usage scenarios• eMBB, mMTC, and URLLC
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Vivid experience Industry promotion, Social Infrastructure
Control of unmanned agricultural machine
Realistic-sensational remote virtual experience
Viewing real-time free-viewpoint 3D video Security camera
Connected car
Possible 5G usage scenarios
eMBB
URLLC
mMTC
The user-centric broadband world
: The mobile brand of KDDI.
Copyright(C) 2017 KDDI Corporation. All Rights Reserved.
Agenda1. Introduction
ITU-R IMT vision Possible usage scenarios
2. Possible 5G network deployment scenario Network structures Deployment scenario
3. Possible 5G network parameters Network topology Bandwidth, Interface type, Latency, etc.
4.Summary
6
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Possible radio access network
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4G
5G Below6GHz
5G28GHz
5G28GHz
Below 3.6GHz
Application example:• 5G: High speed, Small area.
• 4G: Lower speed, Wide area.Complementary
Possible frequency allocation
5G bands will be used in combination with 4G to complement each other. • Requirement of use cases (Mobility, Area, Latency, etc.)• Separation of C-plane and U-plane• Standalone(SA), Non-Standalone(NSA) scenarios
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Slice network
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Example: Multiple slices concurrently operated on the same infrastructure.
Reference : NGMN 5G White paper, next generation mobile networks, February 2015.
eMBB
URLLC
mMTC
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Toward 5G network (3GPP)
9
2017 20182016Mar. Jun.
Rel.15Rel.14
Mar.
Rel.16
●Non-Standalone (NSA) ●Stand Alone(SA)
Study Item PhaseⅠ Work Item PhaseⅡ
Dec.
3a 3x 23
X
Standalone (SA) means full user and control plane capability for 5G RAN, using the new 5G core network.
NSA(Non-Standalone) will use the existing LTE core and RAN while adding a new 5G RAN.
LTE core LTE coreLTE core LTE core 5G core 5G core5G core5G core
3GPP has approved a consensus to move forward on plans to accelerate specifications for a non-standalone (NSA).
Option x :Proposal for 5G in 3GPP
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Possible 5G deployment scenario
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5G 5G5G
eMTCNB-IoT
WirelessLow
latency
eMTCNB-IoT
2020~ 2022~
DownMax.20Gbps
UpMax.10Gbps
HD Video Security Camera Connected
car
4G
High speed, large capacity service
Rel.16: High density,Massive connection service
E2ELow
latency
E2ELow
latencyIoT
202X~
Existingband
Below 6GHz
28GHz
Existing 3GPP band (1.7GHz/2.3GHz etc.)
Rel.16
NSA NSANSA
Rel.13,14
SANew RAT
DownMax.20Gbps
UpMax.10Gbps
DownMax.20Gbps
UpMax.10Gbps
NSA: Non-stand alone, SA: Stand alone
• Initial phase: Large capacity services(eMBB)• Second phase: Low latency services(URLLC), IoT services(mMTC)
eMBB
mMTC URLLC
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Agenda1. Introduction
ITU-R IMT vision Possible usage scenarios
2. Possible 5G network deployment scenario Network structures Deployment scenario
3. Possible 5G network parameters Network topology Bandwidth, Interface type, Latency, etc.
4.Summary
11
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Possible network topologiesFronthaul, Middlehaul, and Backhaul networks
Network reach• Fronthaul network: Less than 20 km• Middlehaul/Backhaul network: Less than 200 km
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Reference : TD78r2/G “Transport network support for IMT-2020/5G,” ITU-T SG15 plenary meeting, Geneva, 19-30 June 2017.
Possible network topologies are the same as the networks described in TD78r2/G.
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Possible network topologies (Contʼd)
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Reference : TD78r2/G “Transport network support for IMT-2020/5G,” ITU-T SG15 plenary meeting, Geneva, 19-30 June 2017.
RRU and DU IntegrationRRU, DU and CU Integration
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Possible 5G network parameters
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Items Parameters
Network reach Fronthaul: Less than 20 kmMiddle/Backhaul: Less than 200 km
Estimated values for bandwidth
Fronthaul: N x 10 G or higher (e.g. 25 G)Middle/Backhaul: N x 100 G or beyond 100 G
Estimated values for latency allocation
UE – CU: less than 4 ms (Tentative)
Estimated interface type Fronthaul: eCPRI, etc.Middle/Backhaul: 100 GbE or beyond 100 GbE(over OTN)
Slice Each service should be isolated at layer 2 or higher (e.g. VLAN, etc.)
Synchronization N/A (GPS-based synchronization)
OAM Packet network based OAM (e.g. E-OAM)
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SummaryPossible usage scenarios for 5G network era
Three important capabilities • eMBB, mMTC, URLLC
Vivid experience, Industry promotion, Social infrastructure• Viewing real-time free-viewpoint video, Connected car, etc.
Possible 5G network deployment scenario The 5G networks are going to be built around a
combination of the 4G networks (Non-standalone (NSA) approach).
Possible 5G network parameters Network reach, Bandwidth, Latency allocation, Interface
type, Slice, Synchronization, and OAM.
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